Home / 238,645.50-329,322.36-131,214.78

Finding the Fourth Proportional to 238,645.50, 329,322.36 and 131,214.78

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Solution

The fourth proportional to 238,645.50, 329,322.36 and 131,214.78 is: 181,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,645.50 : 329,322.36 = 131,214.78 : x
  2. Step 2: Convert to fraction form
    238,645.50/329,322.36 = 131,214.78/x
  3. Step 3: Cross multiply
    238,645.50x = 329,322.36 × 131,214.78
  4. Step 4: Simplify right side
    238,645.50x = 43,211,961,016.48
  5. Step 5: Solve for x
    x = 43,211,961,016.48/238,645.50
  6. Step 6: Final answer
    x = 181,071.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.